35% (1990)

70% (1960)

65% (1989)

0% (1953)

0% (1981)

60% (1988)

40% (1981)

45% (1972)

10% (1953)

20% (1938)

10% (1922)

60% (1989)

70% (1964)

60% (1956)

70% (1971)

60% (1940)

58% (1982)

75% (1962)

10% (1954)

20% (1976)